Use of custom 3D Part Templates (Product Structure Editor)

Hello and happy New Year everyone,

we are looking for a possibility to use custom Templates that are used under e.g. "New 3D Part" in the Product Structure Editor. Such a possibility seems to be available for On-Premise Environments, but not for On-Cloud Environments like we use.

Are there any possibilities to use own Templates or are there same plans to integrate such functionality into Cloud-Environments?

Thank you in advance

Stefan